A set of new illustrations has kicked the rumour mill into overdrive today, raising speculation on the topic of Ferrari's next all-new model.

Obtained by website WorldCarFans, the illustrations are understood to be official patent drawings filed with the European office for trademarks and patents.

There are no details to go with the images however, leaving fans and pundits to guess at what Ferrari might be cooking up.

The illustrations showcase a design well in-line with Ferrari's current styling language, evoking the likes of the 458, FF, F12berlinetta and the top-shelf LaFerrari halo car.

Could we be looking at Ferrari's expected replacement for the California convertible?

TMR's spy photos, snapped late last year, reveal a new model testing beneath the skin of the current California - and while there is no new styling on show, the prototype's proportions match these illustrations.

It is expected that the California's replacement will draw power from a twin-turbo V8, reportedly displacing around 3.0 litres.

In development right now, the new engine is believed to target a power output of more than 372kW, bettering the current California's 365kW.

A KERS system is also expected to feature, adding another 75kW to the mix as needed, and an overall kerb weight below the current model's 1870kg should also help boost performance.